suptek Dual Side Clamping Bookshelf Speaker Wall Mounting Bracket Adjustable for Large Surrounding Sound Speakers, Hold up to 25kgs Each Black SPM201 (2 Packs)COMPATIBILITY: Dual sound bookshelf satellite speaker mount brackets built to be mounted on stud, concrete or brick stone walls. Max. Capacity: 25kg. VERSATILITY: Adjustable Tilt up and down 7. 5 degrees, Swivel left and right 45 degrees, width of speaker should between 135 to 280mm. electing a wall mount that could support their size and weight was a concern. If you didn't want to get something that would bend or pull out of the wall. SLEEK DESIGN: